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BOSTON MARATHON 2025

Serina D'Amico

Bib: 29826•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:59/mi
31:01
↑ 97↓ 3451.5%
10K· 6.21 mi
9:47/mi
1:01:25
↑ 79↓ 1380.4%
15K· 9.32 mi
9:53/mi
1:32:07
↑ 67↓ 78
20K· 12.43 mi
10:28/mi
2:04:39
↑ 106↓ 860.1%
Half· 13.11 mi
10:17/mi
2:11:40
↑ 19↓ 370.5%
25K· 15.53 mi
11:31/mi
2:39:35
↑ 66↓ 880.2%
30K· 18.64 mi
11:15/mi
3:14:33
↑ 181↓ 1480.2%
20M
10:31/mi
3:28:50
↑ 64↓ 500.2%
21M
15:20/mi
3:44:10
↑ 106↓ 241.6%
35K· 21.75 mi
17:13/mi
3:57:03
↑ 17↓ 861.7%
23M
10:54/mi
4:10:42
↑ 23↓ 630.6%
24M
10:26/mi
4:21:08
↓ 821.3%
40K· 24.85 mi
10:43/mi
4:30:18
↓ 200.3%
25.2M
11:30/mi
4:34:16
↑ 13↓ 160.2%
Finish· 26.22 mi
10:08/mi
4:44:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:11:40
Pace10:03 /mi
2nd Half
Distance13.11 mi
Time2:32:56
Pace11:40 /mi
📊Positive Split: 16.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:5531:019:5931:01
9:59
-
10K
6.21 mi12:20:191:01:259:5330:24
9:47
-0:12
15K
9.32 mi12:51:011:32:079:5330:42
9:53
+0:06
20K
12.43 mi13:23:332:04:3910:0232:32
10:28
+0:35
Half
13.11 mi13:30:342:11:4010:037:01
10:17
-0:11
25K
15.53 mi13:58:292:39:3510:1627:55
11:31
+1:14
30K
18.64 mi14:33:273:14:3310:2634:58
11:15
-0:16
20M
20.00 mi14:47:443:28:5010:2614:17
10:31
-0:44
21M
21.00 mi15:03:043:44:1010:4015:20
15:20
+4:49
35K
21.75 mi15:15:573:57:0310:5412:53
17:13
+1:53
23M
23.00 mi15:29:364:10:4210:5413:39
10:54
-6:19
24M
24.00 mi15:40:024:21:0810:5310:26
10:26
-0:28
40K
24.85 mi15:49:124:30:1810:539:10
10:43
+0:17
25.2M
25.20 mi15:53:104:34:1610:533:58
11:30
+0:47
Finish
26.22 mi16:03:304:44:3610:5210:20
10:08
-1:22

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

9:47 /mi

Average Pace

10:52 /mi

Slowest Pace

17:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

4:16:23

90% of race

Time at Slower Pace

28:13

10% of race

Average Pace: 10:51 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:49:5531:019:5931:01
9:59
#25524
10K
6.21 mi12:20:191:01:259:5330:24
9:47
#25146
15K
9.32 mi12:51:011:32:079:5330:42
9:53
#25002
20K
12.43 mi13:23:332:04:3910:0232:32
10:28
#25083
Half
13.11 mi13:30:342:11:4010:037:01
10:17
#25102
25K
15.53 mi13:58:292:39:3510:1627:55
11:31
#25263
30K
18.64 mi14:33:273:14:3310:2634:58
11:15
#25102
20M
20.00 mi14:47:443:28:5010:2614:17
10:31
#24963
21M
21.00 mi15:03:043:44:1010:4015:20
15:20
#25184
35K
21.75 mi15:15:573:57:0310:5412:53
17:13
#25502
23M
23.00 mi15:29:364:10:4210:5413:39
10:54
#25391
24M
24.00 mi15:40:024:21:0810:5310:26
10:26
#25292
40K
24.85 mi15:49:124:30:1810:539:10
10:43
#25225
25.2M
25.20 mi15:53:104:34:1610:533:58
11:30
#25197
Finish
26.22 mi16:03:304:44:3610:5210:20
10:08
#25150
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25524104901049024724(Top 87%)10069(Top 82%)10069(Top 184%)
10K6.21 mi3.10 mi25146+37810307+18310307+18324811(Top 87%)10130(Top 83%)10130(Top 185%)
15K9.32 mi3.11 mi25002+14410222+8510222+8524724(Top 87%)10069(Top 82%)10069(Top 184%)
20K12.43 mi3.11 mi25083-8110277-5510277-5525137(Top 88%)10339(Top 85%)10339(Top 189%)
Half13.11 mi0.68 mi25102-1910291-1410291-1425400(Top 89%)10491(Top 86%)10491(Top 192%)
25K15.53 mi2.42 mi25263-16110399-10810399-10825873(Top 91%)10786(Top 88%)10786(Top 197%)
30K18.64 mi3.11 mi25102+16110337+6210337+6224468(Top 86%)10111(Top 83%)10111(Top 185%)
20M20.00 mi1.36 mi24963+13910276+6110276+6122428(Top 79%)9131(Top 75%)9131(Top 167%)
21M21.00 mi1.00 mi25184-22110413-13710413-13727397(Top 96%)11771(Top 96%)11771(Top 215%)
35K21.75 mi0.75 mi25502-31810590-17710590-17728320(Top 100%)12201(Top 100%)12201(Top 223%)
23M23.00 mi1.25 mi25391+11110551+3910551+3922988(Top 81%)9603(Top 79%)9603(Top 176%)
24M24.00 mi1.00 mi25292+9910503+4810503+4822605(Top 80%)9443(Top 77%)9443(Top 173%)
40K24.85 mi0.85 mi25225+6710472+3110472+3122479(Top 79%)9456(Top 77%)9456(Top 173%)
25.2M25.20 mi0.35 mi25197+2810459+1310459+1321990(Top 77%)9162(Top 75%)9162(Top 168%)
Finish26.22 mi1.02 mi25150+4710443+1610443+1623323(Top 82%)9837(Top 80%)9837(Top 180%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

24724

Females

10069

F18-39

10069

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

24811

Females

10130

F18-39

10130

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

24724

Females

10069

F18-39

10069

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

25137

Females

10339

F18-39

10339

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

25400

Females

10491

F18-39

10491

Half→25K

13.1 - 15.5 mi

Top 91%
×4story building
+66ft-88ft

Overall

25873

Females

10786

F18-39

10786

25K→30K

15.5 - 18.6 mi

Top 86%
×9story building
+181ft-148ft

Overall

24468

Females

10111

F18-39

10111

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

22428

Females

9131

F18-39

9131

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

27397

Females

11771

F18-39

11771

21M→35K

21.0 - 21.8 mi

Top 100%
×7story building
+17ft-86ft

Overall

28320

Females

12201

F18-39

12201

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

22988

Females

9603

F18-39

9603

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22605

Females

9443

F18-39

9443

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

22479

Females

9456

F18-39

9456

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21990

Females

9162

F18-39

9162

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

23323

Females

9837

F18-39

9837

Passing Analysis

Category:
Athletes Passed
1557
Passed By
1183
Net Change
+374
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25524
5K → 10K42547+378#25524#25146
10K → 15K20359+144#25146#25002
15K → 20K111192-81#25002#25083
20K → Half2140-19#25083#25102
Half → 25K60221-161#25102#25263
25K → 30K21150+161#25263#25102
30K → 20M1434+139#25102#24963
20M → 21M8229-221#24963#25184
21M → 35K1319-318#25184#25502
35K → 23M1176+111#25502#25391
23M → 24M1034+99#25391#25292
24M → 40K725+67#25292#25225
40K → 25.2M313+28#25225#25197
25.2M → Finish514+47#25197#25150
TOTALS15571183+374
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing